Utility companies around the world are more than ever working to improve the management of the critical assets that are power transformers. Day to day operation supervision as well as lifetime temperature control can significantly optimize power transformer loading. Maximizing the performance of a transformer by monitoring its true temperature will reduce premature aging and allow for intelligent preventive maintenance planning, directly increasing the return on your investment.

FISO’s proposition to support the effort of utility companies is the Nortech Transformer Winding Hot Spot Temperature Monitoring System. Using proven Fiber Optic technology the Nortech system allows for direct, real-time, and long-term monitoring of power transformers, providing smarter dynamic substation and power grid management.

The Nortech Fiber Optic System

• Reliable & Cost Effective Hot Spot Solution
• IEC Compliant EasyDisk Sensor Installation
• Leak-Free Tank Wall Optical Interface
• User-Friendly Installation and Operation
• Nortech Client PC Software for easy configuration and monitoring

Transformer Solutions - Temperature

Nortech EasyGrid LT (conditioner) NEW!
Nortech EasyGrid (conditioner)
Nortech Sentinel (conditioner - not for new design) 
TPT-62 (sensor) 
TPT-32 (sensor - not for new design) 
EasyThrough 
EasyPlate
CFO-C12 (External Extension)

EVOLUTION product line

For industrial and scientific applications (FPI-HR) 
For industrial and scientific applications (FPI-HS) NEW! 
For EED/HERO application (FPI-HERO) 
For EED/HERO application (FPI-HS/HE) NEW! 
For medical applications (FOP-MIV pressure solution) 
For medical applications (FOP-M260 pressure solution) NEW!

Fiber Optic Temperature Sensors

FOT-L (standard) 
FOT-M (medical)

Fiber Optic Pressure Sensors

FOP-F125 (diameter of 125 m) NEW!
FOP-M (standard) 
FOP-MIV (medical) 
FOP-C (metal) 
FOP-MH (high temperature) 
FOP-MHP (FOP-M high pression) 
FOP-MS (side-looking) 
FOP-MA (pressure/acoustic)

Fiber Optic Strain Sensors

FOS-N (standard) 
EFO (embedded concrete) 
SFO-W (spot welded)

Fiber Optic Displacement Sensor

Fiber Optic Refractive Sensor

Signal Conditioners – One Channel

FTI-10 (universal) 
FTI-OEM

Signal Conditioners – Multichannel- Sequential

HERO/EED/EMC Solution – Temperature/Current

FOT-HERO (sensor) 
FPI-HS/HE - HERO/EED